OR and 95% confidence intervals for recurrent wheezing in children up to 2 years of age, related to variables used for adjustment in the analysis of the BAMSE case-control study
| Exposure | Cases | Controls | ORcrude | 95% CI | ORadj* | 95% CI |
|---|---|---|---|---|---|---|
| * Adjusted for remaining variables in the table. | ||||||
| †Reference category; buildings erected before 1940. | ||||||
| Gender (boy v girl) | 116 | 170 | 2.03 | 1.38 to 2.98 | 2.13 | 1.40 to 3.25 |
| Heredity (yes v no) | 72 | 109 | 1.47 | 1.01 to 2.13 | 1.52 | 1.01 to 2.28 |
| Maternal age (<26/>26) | 28 | 42 | 1.37 | 0.80 to 2.31 | 1.13 | 0.63 to 2.02 |
| Maternal smoking (yes v no) | 41 | 53 | 1.69 | 1.02 to 2.74 | 1.53 | 0.88 to 2.66 |
| Breast feeding(>6 v <6 month) | 137 | 295 | 0.64 | 0.40 to 1.05 | 0.70 | 0.41 to 1.19 |
| Building age† | ||||||
| 1940–75 | 83 | 153 | 1.61 | 1.00 to 2.56 | 1.69 | 1.01 to 2.89 |
| 1975 onwards | 63 | 104 | 1.81 | 1.09 to 2.99 | 1.86 | 1.05 to 3.27 |